[XR650R]

We use 91 octane for testing here unless otherwise stated.

And this was done with 93. Expect closer to claimed numbers with 91.

I'm not calling you a liar. You thought it was on 91 when you said that.

I get 93 locally, but I've used 91 on trips out west. The car handled it fine, but it isn't 93.

That's why I like the MP215 tune. Just set it and forget it. More power and torque at all RPM, and you don't have to do anything else.

Fuel economy will stay about the same, and you'll never get a CEL. Reliable as stock.